Exposing the moderator’s name to public is a terrible idea. It makes the moderator a target for abuse and harassment. Bots don’t care so it’s fine for them to automatically append their name in the reason, but humans do and it can even be dangerous.
As it stands currently, channel owner can ask moderators to use a unique identifier (such as initials), which the public can’t identify, but the moderators can. I hope the moderator audits/logs aren’t far away, which will of course tell who did what. Exposing it immediately in the chat to the other moderators would be helpful, though.